Electric kettle



FIG. 1 is a top and side perspective view of an electric kettle showing my new design;

FIG. 2 is a side elevational view thereof, the side opposite that shown in FIG. 2 being the mirror image thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a top plan view thereof.

The bottom is plain and unornamented and forms no part of the present design. 

The ornamental design for an electric kettle, as shown and described. 